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Old 02-16-2011, 11:59 AM   #20
68GMCCustom
Truck and auto performance nut
 
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Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
Re: Dynatech MuscleMaxx Headers

mine are the 1 7/8" x 3" coated... I bought from Speedway, off this page:

http://www.speedwaymotors.com/NEW-Dy...LS2,41927.html

If you go to the Dynatech page you'll see that they also offer various stepped headers also but for sbc.

http://www.afabcorp.com/AFCO_Dynatec...uscle_camaro70

....but they only offer the 1.88" (actually 1 7/8") in 2.5" on their page....so obviously the 03C on Speeday's refers to a 3" coated header...since they show 025C is 2.5".

only this one (mine but 2.5" reducers) is listed as LSX and is not stepped...others are for sbc:
115-90940025C 1.88 LSX 70-81 Camaro Hdr Coated w/2.5" Reducers $399.99

and here are the '67-'69 numbers:
115-91140025C 1.88 LSX 67-69 Camaro/68-74 Nova Hdr Coated w/2.5 Reducer $399.99
115-91140030C 1.88 LSX 67-69 Camaro/68-74 Nova Hdr Coated w/3.0 Reducer $399.99
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Kurt -

'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken

Last edited by 68GMCCustom; 02-16-2011 at 12:03 PM.
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